My in laws literally can’t communicate with me. My fil has an appt today for his dialysis and he…

My in laws literally can’t communicate with me. My fil has an appt today for his dialysis and he didn’t even mention to me that we were going to be picked up and didn’t even tell me the time. So he left without me even knowing!! But yet, my mil yells at me because I didn’t go with him! I told her that it’s not my fault that my father in law never told me what time the transportation was going to pick us up!